Leviticus 22:10 (KJV)

Or whosoever toucheth any creeping thing, whereby he may be made unclean, or a man of whom he may take uncleanness, whatsoever uncleanness he hath;

The soul which hath touched any such shall be unclean until even, and shall not eat of the holy things, unless he wash his flesh with water.

And when the sun is down, he shall be clean, and shall afterward eat of the holy things; because it is his food.

That which dieth of itself, or is torn with beasts, he shall not eat to defile himself therewith; I am the LORD.

They shall therefore keep mine ordinance, lest they bear sin for it, and die therefore, if they profane it: I the LORD do sanctify them.

But if the priest buy any soul with his money, he shall eat of it, and he that is born in his house: they shall eat of his meat.

If the priest's daughter also be married unto a stranger, she may not eat of an offering of the holy things.

But if the priest's daughter be a widow, or divorced, and have no child, and is returned unto her father's house, as in her youth, she shall eat of her father's meat: but there shall be no stranger eat thereof.

And if a man eat of the holy thing unwittingly, then he shall put the fifth part thereof unto it, and shall give it unto the priest with the holy thing.

And they shall not profane the holy things of the children of Israel, which they offer unto the LORD;